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Top IB Resources & Websites [Official 2019 Rankings]

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www.ibresources.org is a student-led initiative (2017-2019) to list and rank the top online resources and websites for International Baccalaureate (IB) students. With the help of over 20,000 IB students worldwide, the goal of ibresources.org is to showcase the top online resources that have helped IB students learn, study and revise for their IB exams. 

---- Chemistry ----
Full list: www.ibresources.org/chemistry

Ranked #1: Richard Thornley – Youtube Channel
Overall Rating: 9.2/10
Overview: Richard Thornley is an IB Teacher with an immensely popular YouTube channel with over 40 thousand subscribers and 13 million YouTube views. The videos are aligned to the IB Chem curriculum and teaching is very high quality, clear and easy to understand. Pretty much the entire SL and HL curriculums are covered in the various playlists he has. The resource is completely free is it’s just a YouTube channel. The downside of this is that the resource is solely videos (no IB Exam Questions or Worksheets), so Past Paper practice is still required.

Ranked #2: Mr Weng’s IB Chemistry – Website
Overall Rating: 8.9/10
Overview: Andrew Weng (Mr Weng) is a close second behind Richard Thornley for IB Chemistry aligned online resources. Mr. Weng has both an extensive YouTube channel of videos and his own website, which includes theory videos, video solutions to IB specimen papers and links to practice problem. All the material on his website is free. Mr. Weng’s teaching style is high quality and to the point, although can be a bit slow at times. He is a very good teacher that many students speak fondly of him.

Ranked #3: MSJChem - Website
Overall Rating: 8.7/10
Overview: MSJChem is another high quality online chemistry resource that is specific to the IB. He has both a YouTube channel, and his own website, which is split between a free and members section ($10). His Teaching is more fast paced and direct than Richard Thornley and Andrew Weng, which may suit some students more, who just want the core information in a quick manner. MSJChem separates himself from Thornley & Weng by providing useful worksheets and syllabus guides.

Ranked #4: Tyler DeWitt - Website
Overall Rating: 7.4/10
Overview: Tyler DeWitt is somewhat of a celebrity in the online Science teaching space, giving speeches and Ted Talks on topics like “The Joy of Science”. He has a huge range of high quality Chemistry videos that are free to access on his website or YouTube channel. His teaching is very clear, easy to understand & thorough. The downside is his videos aren’t IB aligned, so you will need to search for the particular concept you are studying. In addition, there aren’t any IB exam questions to practice.

Ranked #5: Khan Academy - Website
Overall Rating: 7.2/10
Overview: Khan Academy, founded by the popular teacher Sal Khan, started out as an online mathematics resource, but has now branched out into a whole host of other subjects, including Chemistry. Khan Academy was one of the early pioneers in online teaching, being one of the early adopters to YouTube in the early 2000’s. The Khan Academy website has a huge range of videos and practice questions. Unfortunately it has become a bit complicated to navigate, due to the shear volume of subjects and topics. However, if you can learn to use the functionality, it is a very useful website to accompany your subject, for Chem and your other IB subjects. Unfortunately the resource isn’t IB aligned and there aren’t any IB exam questions to practice.

---- Biology ----
Full list: www.ibresources.org/biology

Ranked #1: Bioninja – Website
Overall Rating: 9.4/10
Overview: Bioninja is a wonderful free website that covers the SL and HL IB Bio courses. The website is well structured in topic format, so it’s very easy to find the area of theory you are interested in. From there, there are highly detailed explanations of the theory, with nice diagrams and videos attached. This is a highly useful website to learn the theory in the IB Bio courses.

Ranked #2: Alex Lee – Youtube Channel
Overall Rating: 9.2/10
Overview: Alex Lee (Mr. Lee) is an IB Biology Teacher who has a fantastic YouTube channel with videos that cover the entire SL & HL Bio courses. His videos are easy to understand, engaging and (importantly) completely aligned to the IB curriculum. The channel has over 4 million video views and 20,000 subscribers (impressive for a channel completely dedicated to IB Bio).

Ranked #3: Stephanie Castle – Youtube Channel
Overall Rating: 8.8/10
Overview: Stephanie Castle is an IB Biology Teacher who teaches in New York. She has an extensive YouTube channel of IB Bio videos that cover the entire SL Bio course, arranged by standard. The videos are very engaging, and she is clearly a knowledgeable and enthusiastic Teacher.

Ranked #4: Crash Course – Youtube Channel
Overall Rating: 8.2/10
Overview: Crash Course is a very popular YouTube channel with over 1 billion video views! It has a wide range of themes, including Computer Science, Business, Sociology and others. So why is this in the Bio resources section? Well, it also has a very engaging Biology playlist that teaches a lot of the theory in the IB Bio courses. Unfortunately though, Crash Course isn’t IB aligned, so other resources like Past Papers and Bioninja will need to be used in conjunction to this. However, if you want to learn or refresh just a straight piece of theory, this is a great resource for that.

Ranked #5: Khan Academy – Website
Overall Rating: 7.6/10
Overview: Khan Academy started out as a YouTube playlist with maths videos, however has significantly expanded out into its own website and a large range of different subjects and topics. High school biology is one area it covers, and they have a nice collection of theory videos and practice questions. Khan Academy isn’t aligned to the IB however, which is the main shortcoming for IB students.

---- Physics ----
Full list: www.ibresources.org/physics

Ranked #1: Chris Doner - YouTube Channel
Overall Rating: 9.1/10
Overview: Chris Doner & Mitch Cambell are the two leading providers of IB aligned online physics videos, with Doner closely leading at this stage. He has an extensive library of high quality videos on his Youtube channel covering the entire SL and HL curriculum (apart from a couple of HL options). Since it’s purely a YouTube channel, naturally this resource is completely free. His teaching is clear, to the point and easy to understand. The videos have a similar look and feel to Khan Academy, with the simple background and handwritten instructions, a mode that students mention is quite effective. The downside to this resource is, since it’s purely a YouTube channel, it doesn’t suit well to IB Exam question practice, although there are times in his videos he advises the viewer to pause and try an example question. Even still, past paper practice will be required in addition to his videos

Ranked #2: Mitch Campbell (Studynova) - YouTube Channel
Overall Rating: 8.9/10
Overview: Mitchel Cambell closely follows Doner as a high quality provider of IB aligned physics videos and resources. He has an excellent range of videos on his YouTube channel (called Studynova), then also has a paid physics course on his website (also called Studynova). The videos on his YouTube channel are highly regarded by students for his easy to understand, conversational manner. The videos cover pretty much the entire SL & HL physics courses. The paid courses include these theory videos, then also add practice IB questions and video tutorials to past IB paper. Unfortunately the price tag is quite steep ($159 for SL & $249 for HL).

Ranked #3: Khan Academy - Website
Overall Rating: 8.1/10
Overview: Khan Academy has yet again been voted by students into the list of top ranked IB Resources, this time for Physics. Khan Academy has extended its offering from a foundation of just maths, to a whole range of subjects, such as Chemistry, Biology and Physics. The core of the Khan Academy resource is theory videos, covering concepts that are taught in class. These videos can be found on both their website and YouTube channel. There are also some other types of resources on their website, such as summary notes and practice questions. Unfortunately, Khan Academy isn’t aligned to the IB Curriculum and therefore it’s sometimes hard to find the particular concept you are looking for, and it’s also not that great for final revision. Past paper practice would definitely be required as a supplement to Khan Academy if you want to go well in your IB Physics exams.

Ranked #4: MR. G’S DP Physics - Website
Overall Rating: 7.3/10
Overview: Mr G is an IB Physics teacher who has kindly uploaded all of his teaching material onto a website. These notes mainly consist of powerpoints (pptx filetype) that cover all the content in the IB Physics curriculum. These aren’t summary notes, they are actually the full content. There are also links to videos, however these videos aren’t created by Mr. G, they are links to other resources like Chris Doner. There is also quite a nice page titled “Teaching the Course,” which overviews his thoughts on the DP Physics course and in which order the topics should be taught.

Ranked #5: IBPhysics.org - Website
Overall Rating: 6.1/10
Overview: Mr G is an IB Physics teacher who has kindly uploaded all of his teaching material onto a website. These notes mainly consist of powerpoints (pptx filetype) that cover all the content in the IB Physics curriculum. These aren’t summary notes, they are actually the full content. There are also links to videos, however these videos aren’t created by Mr. G, they are links to other resources like Chris Doner. There is also quite a nice page titled “Teaching the Course,” which overviews his thoughts on the DP Physics course and in which order the topics should be taught.

---- Mathematics ----
Full list: www.ibresources.org/mathematics

Ranked #1: Revision Village - Website
Overall Rating: 9.5/10
Overview: Revision Village is a beautiful website that is now used by more than 70% of IB students worldwide. The easy-to-use website features a complete library of IB specific Mathematics resources to help students learn, practice and revise for their exams. Website features include:  HL/SL/Studies Exam Questionbanks, practice exams, topic exams, learning videos, step-by-step video solutions to past IB papers and IB mock exams. The website has a Free and Premium (RV Gold) Membership option. 

Ranked #2: PatrickJMT - Website
Overall Rating: 8.8/10
Overview: PatrickJMT has been a popular provider of online Mathematics videos for many years now, being one first adopters on Youtube, along with Sal Khan from Khan Academy. He has an extensive range of maths videos and is a very clear, thorough teacher.PatrickJMT now has his own website, which is useful to see his whole range of videos on one page, in addition to his Youtube playlists. As you will see if you click through to his webpage, he has hundreds (perhaps thousands) of free maths videos, covering all areas of high school & university mathematics. The downside is his videos aren’t aligned to the IB curriculum and it can therefore be tricky to find the video you want, as the concepts are often named slightly differently. Also, he doesn’t have videos involving IB Exam questions, so in addition to using this resource you would need to use a resource like Revision Village or IB Past Papers to fill that gap.

Ranked #3: IB Maths Resources - Website
Overall Rating: 7.8/10
Overview: This website/blog is run by an IB Mathematics teacher (Andrew Chambers) and hosts a large number of resources for IB students. With 6 million pages views, this big website is filled with lots of useful links and videos. If you’ve never come across this site before, start by exploring the IB Maths SL/HL/Studies Videos tab at the top of the website. This website also has a huge library of IA examples and is a great place for students to get ideas.

Ranked #4: Khan Academy - Website
Overall Rating: 7.6/10
Overview: Khan Academy has been a pioneer in the online education space, being an early adopter to YouTube, and immensely popular to students around the world. It has now how has its own sophisticated website, covering a whole range of high school and university subjects. There are thousands of free maths videos on there, covering all Studies, SL and HL concepts (although they aren’t aligned and named per IB format, so you will need to search for them). The videos have a distinct style, which a black background and the soothing baritone voice of the popular founder, Sal Khan. The videos are entertaining and presented in a casual, conversational manner. Unfortunately, in an effort to become a resource used by schools, the Khan Academy website has become a bit bloated, hard to use and difficult to navigate. Many students prefer to stick with the YouTube playlists.

Ranked #5: StudyNova - Website
Overall Rating: 6.6/10
Overview: StudyNova is an online IB website that covers a range of subjects, including Maths, Physics, Chemistry & Biology. It is run by an IB Teacher (Mitch Cambell) and has theory videos and practice questions. They also have a YouTube channel, which is pretty comprehensive, particularly in Physics. The website has some free resources, but most is behind a paywall that is rather expensive ($199 USD). It’s hard to justify that spend, since most of the material is theory videos, that can be sourced for free by PatrickJMT and Khan Academy.

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Summary of Rankings

Chemistry
#1 Richard Thornley - Youtube Channel  (9.2/10)
#2 Mr Weng’s IB Chemistry – Website (8.9/10)
#3 MSJChem - Website (8.7/10)

Biology
#1 Bioninja – Website  (9.4/10)
#2 Alex Lee – Youtube Channel (9.2/10)
#3 Stephanie Castle – Youtube Channel (8.8/10)

Physics
#1 Chris Doner - YouTube Channel (9.1/10)
#2 Mitch Campbell (Studynova) - YouTube Channel (8.9/10)
#3 Khan Academy - Website (8.1/10)

Mathematics
#1 Revision Village - Website (9.5/10)
#2 PatrickJMT - Website (8.8/10)
#3 IB Maths Resources - Website (7.8/10)

More resources and reviews can be found at www.ibresources.org

Thank you to all of the IB Students who helped contribute to this initiative. We love to hear from fellow IB Students so please submit your reviews at www.ibresources.org/submit-a-review/
 

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